NEET Physics Current Electricity Questions Solved

The V-i graph for a conductor at temperature T1 and T2 are as shown in the figure. $\left({T}_{2}-{T}_{1}\right)$ is proportional to

(1) $\mathrm{cos}2\theta$

(2) $\mathrm{sin}\theta$

(3) $\mathrm{cot}2\theta$

(4) $\mathrm{tan}\theta$

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